Method for judging hairy tofu fermentation terminal point by means of light sensor
A light sensor and fermentation end point technology, applied in instruments, scientific instruments, and material analysis through optical means, can solve problems such as long fermentation time, judgment errors easily affected by many factors, and the growth of harmful bacteria, and achieve a treatment method Simple, fast and efficient judgment, and the effect of improving production efficiency
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Embodiment 1
[0027] A method for determining the end point of fermented tofu by using a photoresistive sensor and a laser transmitter, comprising the following steps:
[0028] 1. Preparation of tofu: use selected soybeans to make water tofu through traditional pulping and point pulping techniques;
[0029] 2. Slicing fermentation: Cut the prepared water tofu into small pieces of equal height, and place them flat on the bamboo strips for fermentation;
[0030] 3. Install the laser transmitter and photoresistor sensor: install a horizontal laser transmitter with a wavelength of 570nm at a height h above the upper surface of the edamame, and at the same time, at the same height as the opposite side of the laser transmitter, at a distance of L Install a YL-38 photoresistive sensor to receive the laser emitted by the laser transmitter; the installation location is as follows figure 1 as shown, figure 1 It is a schematic diagram of the installation position of the light emitter and the light s...
Embodiment 2
[0038] 1. Preparation of tofu: use selected soybeans to make water tofu through traditional pulping and point pulping techniques;
[0039] 2. Fermentation by cutting into pieces: cut the prepared water tofu into small pieces of equal height, and place them flat on the bamboo strips for fermentation. The shape is as follows: figure 1 shown;
[0040] 3. Install the laser emitter and photoresistor sensor: install a horizontal laser emitter with a wavelength of 650nm at a height h above the upper surface of the edamame, and at the same time, at the same height as the opposite side of the laser emitter, at a distance of L Install a YL-38 photoresistive sensor to receive the laser emitted by the laser transmitter;
[0041] 4. Determination of the initial laser signal value: Before the fermented tofu starts to ferment, turn on the laser transmitter to emit a laser with a wavelength of 650nm, and use a photoresistive sensor to detect the received laser signal, convert it into an elec...
Embodiment 3
[0048] 1. Preparation of tofu: use selected soybeans to make water tofu through traditional pulping and point pulping techniques;
[0049] 2. Fermentation by cutting into pieces: cut the prepared water tofu into small pieces of equal height, and place them flat on the bamboo strips for fermentation. The shape is as follows: figure 1 shown;
[0050] 3. Install the laser emitter and photoresistor sensor: Install a horizontal ultraviolet light generator with a wavelength of 190nm at a height h above the upper surface of the edamame. At the same time, it is also on the opposite side of the laser emitter, at a distance of L A YL-38 photoresistive sensor is installed at the place to receive the laser emitted by the laser transmitter;
[0051] 4. Determination of the initial laser signal value: before the fermented tofu starts to ferment, turn on the ultraviolet light emitter to emit ultraviolet light with a wavelength of 190nm, and use a photoresistive sensor to detect the received...
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